CN106750165A - The preparation method of graphite polyurethane elastic composite - Google Patents
The preparation method of graphite polyurethane elastic composite Download PDFInfo
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- CN106750165A CN106750165A CN201611125433.5A CN201611125433A CN106750165A CN 106750165 A CN106750165 A CN 106750165A CN 201611125433 A CN201611125433 A CN 201611125433A CN 106750165 A CN106750165 A CN 106750165A
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- graphite
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- elastic composite
- polyurethane elastic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
Abstract
The preparation method of graphite polyurethane elastic composite of the present invention is related to polyurethane industrial field, and in particular to the preparation method of graphite polyurethane elastic composite, comprises the following steps：The pretreatment of graphite, graphite 300g is taken in the beaker of 1000mL, add the absolute ethyl alcohol and stirring of 400mL uniform, graphite is fully dispersed in absolute ethyl alcohol, ultrasonically treated 30 min is carried out after standing 30 min, use Buchner funnel suction filtration, technique same as described above is repeated 3 times, and is then uniformly layered on iron pan, degree of being put into baking oven, taken out after 24 h, sample sack is loaded after cooling standby；The preparation of performed polymer, weigh graphite add there-necked flask in, then PTMG polyalcohol is added, after standing 12 h, the 3h of vacuum dehydration 2 under the conditions of 100 110 degree, cools to 50 60 degree, adds 2, the min of 4 one toluene di-isocyanate(TDI) low-temp reaction 50, is then warmed up to 80 85 degree of stirrings and the h of insulation reaction 3；The present invention is simple to operate, easy to process, and can guarantee that product quality, enhances product performance.
Description
Technical field
The present invention relates to polyurethane industrial field, and in particular to the preparation method of graphite-polyurethane elastic composite.
Background technology
Polymer-layered fillers composite is the new material for developing rapidly in recent years, because it is except with general
Beyond all of performance of logical composite, also with their unexistent advantages, such as heat resistance, barrier property and fire resistance
Deng and cause the very big concern of scientific circles.For this respect research be concentrated mainly on enhancing to plastic material, toughness reinforcing and its
Application and development in terms of mechanism.And layered fillers then reported in terms of elastic composite it is less.
Polyurethane elastomer (PUE) is the widely used polymeric material of a class, can be by progressively polymerization process
Adjust its molecular chain structure or add organic and inorganic filler to improve its performance heart, such as pass through montmorillonite, silica, glass
The filler modified PUE such as fiber.During with graphite as filler, existing report is concentrated mainly on preparation electric conductivity and thermally conductive materials.By
Have in graphite and there is extremely strong bonded energy as clay-phase between layer structure, carbon atom, interlayer causes with aspect bonding force
Various atoms, molecule, particle cluster can smoothly break through interlayer bonding force, insert interlayer, form compound between graphite layers, therefore, gather
Urethane matrix carries out intercalation polymeric with graphite and can be prepared into graphite-PUE composites.This experiment is mainly made using cheap graphite
It is filler, the preferable graphite-PUE composites of combination property is prepared for using prepolymer method, while having investigated content of graphite pair
The influence of compound system performance.
The content of the invention
It is a kind of simple to operate present invention aim at providing, it is easy to process, and product quality is can guarantee that, enhance product performance
Graphite-polyurethane elastic composite preparation method.
The preparation method of graphite-polyurethane elastic composite of the present invention, comprises the following steps：
The first step, the pretreatment of graphite
Graphite 300g is taken in the beaker of 1000mL, adds the absolute ethyl alcohol and stirring of 400mL uniform, graphite is fully dispersed in nothing
In water-ethanol, ultrasonically treated 30 min is carried out after standing 30 min, uses Buchner funnel suction filtration, technique same as described above is repeated 3 times,
Then uniformly it is layered on iron pan, degree of being put into baking oven, is taken out after 24 h, sample sack is loaded after cooling standby；
Second step, the preparation of performed polymer
Weigh in graphite addition there-necked flask, PTMG polyalcohol is then added, after standing 12 h, in 100-
Vacuum dehydration 2-3h under the conditions of 110 degree, cools to 50-60 degree, adds the min of 2,4 one toluene di-isocyanate(TDI) low-temp reaction 50,
Then the stirring of 80-85 degree and the h of insulation reaction 3 are warmed up to, the mass fraction of sampling analysis NCO bases is 5.58%, reaches design
During nco value, i.e., performed polymer is prepared and finished, and sealing preserve is stand-by；
3rd step, the preparation of elastomer
Weighing performed polymer and being warmed up to 80-85 degree carries out a deaeration, plus people melts quantitative chain extender, and stirring 1-1.5min goes forward side by side
After the secondary deaeration of row, pour into preheated mould, be put on vulcanizing press and vulcanized, curing temperature is 100 degree, 50
Mould unloading after min, then by sample cutting edge and after cure in an oven, after cure temperature is 100 degree, and the time is 15h, obtains final product stone
Ink-polyurethane elastic composite.
Preferably, graphite is the graphite of the sheet of 500 mesh in the first step.
Preferably, chain extender is 3,3 '-two chloro- 4,4 '-two amido diphenyl-methanes.
The present invention is simple to operate, easy to process, and can guarantee that product quality, enhances product performance.
Specific embodiment
Embodiment one：
The preparation method of graphite-polyurethane elastic composite of the present invention, comprises the following steps：
The first step, the pretreatment of graphite
Graphite 300g is taken in the beaker of 1000mL, adds the absolute ethyl alcohol and stirring of 400mL uniform, graphite is fully dispersed in nothing
In water-ethanol, ultrasonically treated 30 min is carried out after standing 30 min, uses Buchner funnel suction filtration, technique same as described above is repeated 3 times,
Then uniformly it is layered on iron pan, degree of being put into baking oven, is taken out after 24 h, sample sack is loaded after cooling standby；
Second step, the preparation of performed polymer
Weigh in graphite addition there-necked flask, PTMG polyalcohol is then added, after standing 12 h, in 100-
Vacuum dehydration 2-3h under the conditions of 110 degree, cools to 50-60 degree, adds the min of 2,4 one toluene di-isocyanate(TDI) low-temp reaction 50,
Then the stirring of 80-85 degree and the h of insulation reaction 3 are warmed up to, the mass fraction of sampling analysis NCO bases is 5.58%, reaches design
During nco value, i.e., performed polymer is prepared and finished, and sealing preserve is stand-by；
3rd step, the preparation of elastomer
Weighing performed polymer and being warmed up to 80-85 degree carries out a deaeration, plus people melts quantitative chain extender, and stirring 1-1.5min goes forward side by side
After the secondary deaeration of row, pour into preheated mould, be put on vulcanizing press and vulcanized, curing temperature is 100 degree, 50
Mould unloading after min, then by sample cutting edge and after cure in an oven, after cure temperature is 100 degree, and the time is 15h, obtains final product stone
Ink-polyurethane elastic composite.
Embodiment two：
The preparation method of graphite-polyurethane elastic composite of the present invention, comprises the following steps：
The first step, the pretreatment of graphite
Graphite 300g is taken in the beaker of 1000mL, adds the absolute ethyl alcohol and stirring of 400mL uniform, graphite is fully dispersed in nothing
In water-ethanol, ultrasonically treated 30 min is carried out after standing 30 min, uses Buchner funnel suction filtration, technique same as described above is repeated 3 times,
Then uniformly it is layered on iron pan, degree of being put into baking oven, is taken out after 24 h, sample sack is loaded after cooling standby；
Second step, the preparation of performed polymer
Weigh in graphite addition there-necked flask, PTMG polyalcohol is then added, after standing 12 h, in 100-
Vacuum dehydration 2-3h under the conditions of 110 degree, cools to 50-60 degree, adds the min of 2,4 one toluene di-isocyanate(TDI) low-temp reaction 50,
Then the stirring of 80-85 degree and the h of insulation reaction 3 are warmed up to, the mass fraction of sampling analysis NCO bases is 5.58%, reaches design
During nco value, i.e., performed polymer is prepared and finished, and sealing preserve is stand-by；
3rd step, the preparation of elastomer
Weighing performed polymer and being warmed up to 80-85 degree carries out a deaeration, plus people melts quantitative chain extender, and stirring 1-1.5min goes forward side by side
After the secondary deaeration of row, pour into preheated mould, be put on vulcanizing press and vulcanized, curing temperature is 100 degree, 50
Mould unloading after min, then by sample cutting edge and after cure in an oven, after cure temperature is 100 degree, and the time is 15h, obtains final product stone
Ink-polyurethane elastic composite.
Graphite is the graphite of the sheet of 500 mesh in the first step.
Embodiment three：
The preparation method of graphite-polyurethane elastic composite of the present invention, comprises the following steps：
The first step, the pretreatment of graphite
Graphite 300g is taken in the beaker of 1000mL, adds the absolute ethyl alcohol and stirring of 400mL uniform, graphite is fully dispersed in nothing
In water-ethanol, ultrasonically treated 30 min is carried out after standing 30 min, uses Buchner funnel suction filtration, technique same as described above is repeated 3 times,
Then uniformly it is layered on iron pan, degree of being put into baking oven, is taken out after 24 h, sample sack is loaded after cooling standby；
Second step, the preparation of performed polymer
Weigh in graphite addition there-necked flask, PTMG polyalcohol is then added, after standing 12 h, in 100-
Vacuum dehydration 2-3h under the conditions of 110 degree, cools to 50-60 degree, adds the min of 2,4 one toluene di-isocyanate(TDI) low-temp reaction 50,
Then the stirring of 80-85 degree and the h of insulation reaction 3 are warmed up to, the mass fraction of sampling analysis NCO bases is 5.58%, reaches design
During nco value, i.e., performed polymer is prepared and finished, and sealing preserve is stand-by；
3rd step, the preparation of elastomer
Weighing performed polymer and being warmed up to 80-85 degree carries out a deaeration, plus people melts quantitative chain extender, and stirring 1-1.5min goes forward side by side
After the secondary deaeration of row, pour into preheated mould, be put on vulcanizing press and vulcanized, curing temperature is 100 degree, 50
Mould unloading after min, then by sample cutting edge and after cure in an oven, after cure temperature is 100 degree, and the time is 15h, obtains final product stone
Ink-polyurethane elastic composite.
Graphite is the graphite of the sheet of 500 mesh in the first step.
Chain extender is 3,3 '-two chloro- 4,4 '-two amido diphenyl-methanes.
The present invention is simple to operate, easy to process, and can guarantee that product quality, enhances product performance.
Claims (3)
1. a kind of preparation method of graphite-polyurethane elastic composite, it is characterised in that comprise the following steps：
The first step, the pretreatment of graphite
Graphite 300g is taken in the beaker of 1000mL, adds the absolute ethyl alcohol and stirring of 400mL uniform, graphite is fully dispersed in nothing
In water-ethanol, ultrasonically treated 30 min is carried out after standing 30 min, uses Buchner funnel suction filtration, technique same as described above is repeated 3 times,
Then uniformly it is layered on iron pan, degree of being put into baking oven, is taken out after 24 h, sample sack is loaded after cooling standby；
Second step, the preparation of performed polymer
Weigh in graphite addition there-necked flask, PTMG polyalcohol is then added, after standing 12 h, in 100-
Vacuum dehydration 2-3h under the conditions of 110 degree, cools to 50-60 degree, adds the min of 2,4 one toluene di-isocyanate(TDI) low-temp reaction 50,
Then the stirring of 80-85 degree and the h of insulation reaction 3 are warmed up to, the mass fraction of sampling analysis NCO bases is 5.58%, reaches design
During nco value, i.e., performed polymer is prepared and finished, and sealing preserve is stand-by；
3rd step, the preparation of elastomer
Weighing performed polymer and being warmed up to 80-85 degree carries out a deaeration, plus people melts quantitative chain extender, and stirring 1-1.5min goes forward side by side
After the secondary deaeration of row, pour into preheated mould, be put on vulcanizing press and vulcanized, curing temperature is 100 degree, 50
Mould unloading after min, then by sample cutting edge and after cure in an oven, after cure temperature is 100 degree, and the time is 15h, obtains final product stone
Ink-polyurethane elastic composite.
2. the preparation method of graphite-polyurethane elastic composite as claimed in claim 1, it is characterised in that in the first step
Graphite is the graphite of the sheet of 500 mesh.
3. the preparation method of graphite-polyurethane elastic composite as claimed in claim 2, it is characterised in that the chain extension
Agent is 3,3 '-two chloro- 4,4 '-two amido diphenyl-methanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125433.5A CN106750165A (en) | 2016-12-09 | 2016-12-09 | The preparation method of graphite polyurethane elastic composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125433.5A CN106750165A (en) | 2016-12-09 | 2016-12-09 | The preparation method of graphite polyurethane elastic composite |
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| Publication Number | Publication Date |
|---|---|
| CN106750165A true CN106750165A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611125433.5A Pending CN106750165A (en) | 2016-12-09 | 2016-12-09 | The preparation method of graphite polyurethane elastic composite |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810485A (en) * | 2019-01-29 | 2019-05-28 | 天津百恩威新材料科技有限公司 | Graphite/elastic resin composite grain, its preparation method and the application in production polishing wheel |
| CN110271073A (en) * | 2019-05-13 | 2019-09-24 | 阜阳大可新材料股份有限公司 | A kind of preparation method of 3D molded fiber plate |
-
2016
- 2016-12-09 CN CN201611125433.5A patent/CN106750165A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810485A (en) * | 2019-01-29 | 2019-05-28 | 天津百恩威新材料科技有限公司 | Graphite/elastic resin composite grain, its preparation method and the application in production polishing wheel |
| CN110271073A (en) * | 2019-05-13 | 2019-09-24 | 阜阳大可新材料股份有限公司 | A kind of preparation method of 3D molded fiber plate |
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Application publication date: 20170531 |